DOC AIRBUS | AMM A320FDeactivation of the Fan Cowl Strake [PW11]
TASK 71-13-00-040-813-A
Deactivation of the Fan Cowl Strake
CDL 54-01
Nacelle Strake
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 71-13-00-941-095-A ** ON A/C NOT FOR ALL
Subtask 71-13-00-410-111-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:32:02 UTC
Deactivation of the Fan Cowl Strake
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobCDL 54-01
Nacelle Strake
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE |
| No specific | Torque wrench: range to between 20 and 18 lbf.in (0.23 and 0.20 m.daN )  |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.PU1-0001) | lint-free cotton cloth |
| (Material No.PU2-0001) | alcohol, isopropyl |
| (Material No.PU3-0004) | sealant |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1) | |
| 437AL, 438AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2) | |
| 447AL, 448AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-00-00-860-833-A | Procedure to Prevent Engine Motoring |
| TASK 71-13-00-010-802-A | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-802-A | Closing of the Fan Cowl Doors |
| TASK 71-13-07-000-801-A | Removal of the Fan Cowl Strakes |
Fan Cowl StrakeSubtask 71-13-00-941-095-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833)
Subtask 71-13-00-010-118-A ** ON A/C NOT FOR ALL (1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833)
B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(2) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
4. Procedure(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(2) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
WARNING:
WEAR APPLICABLE PERSONAL PROTECTIVE EQUIPMENT (PPE) WHEN YOU DO THIS TASK. BEFORE YOU USE PPE, READ, UNDERSTAND AND OBEY ALL INSTRUCTIONS FOR ITS USE. THESE INSTRUCTIONS INCLUDE INSTRUCTIONS FROM THE MANUFACTURER, YOUR EMPLOYER AND GOVERNMENT REGULATIONS. YOU CAN GET INJURED IF YOU DO NOT USE PPE. GET INSTRUCTIONS FROM YOUR EMPLOYER ON WHICH PPE IS NECESSARY.
CAUTION:
WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
Subtask 71-13-00-040-052-A ** ON A/C NOT FOR ALL A. Deactivation of the fan cowl strake.
(2) Install the temporary fasteners on the fan cowl door as follows:
(a) Clean the surfaces of the fan cowl door where you will install the temporary fasteners. Use a clean, lint-free cotton cloth (Material No.PU1-0001) andPU2-0001 alcohol, isopropyl PU2-0001 alcohol, isopropyl
(b) Clean the bolts (3), (4), and (5) with a clean, lint-free cotton cloth (Material No.PU1-0001) andPU2-0001 alcohol, isopropyl PU2-0001 alcohol, isopropyl
(c) TORQUE the bolts (5) to between 20 and 18 lbf.in (0.23 and 0.20 m.daN ).
(d) Install the 15 bolts (3) and 15 washers (2) on the fan cowl door. Wet install the 15 bolts (3) with sealant (Material No.PU3-0004) .
(e) TORQUE the bolts (3) to between 20 and 18 lbf.in (0.23 and 0.20 m.daN ).
(f) Install the two bolts (4), two washers (2), and two nuts (1) on the fan cowl door. Wet install the bolts (4) with sealant (Material No.PU3-0004) .
(g) TORQUE the nuts (1) to between 20 and 18 lbf.in (0.23 and 0.20 m.daN ).
5. Close-upNOTE: This procedure is for the strake on the left fan cowl door. The procedure for the strake on the right fan cowl door is opposite.
NOTE: This procedure is for the left fan cowl door. The procedure for the right fan cowl door is the same.
(1) If the damaged fan cowl strake is there, remove the strake from the fan cowl (Ref. AMM TASK 71-13-07-000-801). (2) Install the temporary fasteners on the fan cowl door as follows:
(a) Clean the surfaces of the fan cowl door where you will install the temporary fasteners. Use a clean, lint-free cotton cloth (Material No.PU1-0001) and
(b) Clean the bolts (3), (4), and (5) with a clean, lint-free cotton cloth (Material No.PU1-0001) and
(c) TORQUE the bolts (5) to between 20 and 18 lbf.in (0.23 and 0.20 m.daN )
. (d) Install the 15 bolts (3) and 15 washers (2) on the fan cowl door. Wet install the 15 bolts (3) with sealant (Material No.PU3-0004) .
(e) TORQUE the bolts (3) to between 20 and 18 lbf.in (0.23 and 0.20 m.daN )
. (f) Install the two bolts (4), two washers (2), and two nuts (1) on the fan cowl door. Wet install the bolts (4) with sealant (Material No.PU3-0004) .
(g) TORQUE the nuts (1) to between 20 and 18 lbf.in (0.23 and 0.20 m.daN )
. Subtask 71-13-00-410-111-A ** ON A/C NOT FOR ALL